Finding the Fourth Proportional to 15,300.48, 22,948.56 and 7,507.20

Step by Step Solution

1. Step 1: Write the proportion equation
   15,300.48 : 22,948.56 = 7,507.20 : x
2. Step 2: Convert to fraction form
   15,300.48/22,948.56 = 7,507.20/x
3. Step 3: Cross multiply
   15,300.48x = 22,948.56 × 7,507.20
4. Step 4: Simplify right side
   15,300.48x = 172,279,429.63
5. Step 5: Solve for x
   x = 172,279,429.63/15,300.48
6. Step 6: Final answer
   x = 11,259.74